Ball Valves Trunnion
Cast Steel 2 piece Trunnion Mounted Ball Valves - Model No.SE-16
Features
- STARTEK Cast Steel Ball Valves have been designed to meet the requirements BS 5351/ASME B 16.34/API 6D-ISO 14313/API 608/MSS SP 72
- Face to Face and End to End dimensions conform to ASME B 16.101 ISO 57521 BS 2080 /API 6D-ISO 14313 / DIN
- End flange dimensions conform to ASME B 16.51 ISO 7005-1 / API 6051 BS 32931 DIN
- Butt weld end dimensions conform to ASME B 16.25
- Fire tested design to API 607/API 6FAJBS 6755-11
- Pressure energized seat rings with spring assistance for preloading ensure leak tightness even at low pressure
- Blow out proof stem construction
- Double block and bleed
- Antistatic devices ensure electrical continuity between ball, stem and body
- Bearing pads fix the ball and absorb total thrust of the medium relieving the downstream sealing of the load
- ISO 5211 top pad for simplified gear/actuator mounting
- Valves meet the requirements of fugitive emission levels Shell category B as Per MESC SPE 77/312
Option
- Two or three piece construction
- For low temperature and cryogenic services (cold box and non-cold box applications) extended bonnet as per BS 6364 available
- Locking arrangement
- Gear, Electrical, Hydraulic or Pneumatic actuator available
- Soft seats are recommended for service temperature up to 260°C and for higher temperatures metal to metal seating offered
- Emergency sealant injection system
- Large valves are provided with lifting lugs and installation supports.
Materials
| Part Name | Material Option | |
|---|---|---|
| Body | ASTMA216WCB/A217WC6/A217WC9/A217C5/A217C12/A351CF8/A351CF8M/A351CF3/A351 CF3M/A352 LCB | |
| Side Piece | ASTMA216 WCB/A217WC6 /A217WC9 /A217 C5 /A217C12 /A351CF8 /A351 CF8M/A351 CF3/A351 CF3M/A352 LCB | |
| Ball | ASTM A351 CF8 /A351 CF8M /A182 F304/A182 F316/A182 F6a | |
| Body Seal | PTFE/Graphoil/Spiral Wound SS 316 with Graphoil | |
| Seats | PTFE/GET/Graphite filled PTFE | |
| Seat Retainer | ASTMA216WCB/A217WC6/A217WC9/A217C5/A217C12/A351CF8/A351CF8M/A351CF3/A351CF3M /A352 LCB | |
| Stem | ASTM A182 F304/A182 F316/A182 F6a | |
| Trunnion | ASTM A 216 WCB/ A 217 WC6 / A217 WC9/A217C5/A217C12/A351CF8/A351CF8M/A351CF3/A351CF3M/A352LCB | |
| Gland Housing | ASTM A 216 WCB/A217WC6/A217WC9/A217C5/A217C12/A351CF8/A351CF8M/A351CF3/A 351 CF3M/A 352 LCB | |
| Top Plate | ASTM A 216 WCB/A217 WC6/A 217 WC9/A 217 C5/A 217 C12/A 351 CF8/A351 CF8M/A351 CF3/A351 CF3M/A352 LCB | |
| Spring | Spring Steel /SS304 /SS 316 / Inconel X750 | |
| '0' Ring | VITON/Silicon Rubber/Graphite | |
| Gland | ASTM A182 F304/0182 F3161A182 F6a | |
| Stem Packing | Graphite filled PTFE/Graphoil | |
| Gland Nut | Stainless Steel | |
| Stem Nut | Stainless Steel | |
| Lever | Carbon Steel with PVC | |
| GearBox/Actuator | Manufacturers Standard | |
| Studs/Bolts | ASTM A193 87/0193 B7M/A193 B8/A193 B8M/A 320 L7 | |
| Nut | ASTM 0194 2610194 B7M/A194 B/A194 8M/A194 4/7 |